importdatetimeimportciaoimportsqlalchemyassadb_engine=sa.create_engine('postgres://mikey:corleone@localhost/study')db_throttle=ciao.Throttle(duration=datetime.timedelta(seconds=30),exc=(sa.exc.OperationalError,sa.exc.DisconnectionError,sa.exc.InvalidRequestError,sa.exc.InterfaceError,sa.exc.DatabaseError,sa.exc.DBAPIError,),)ifnotdb_throttle:withdb_throttle:db_engine.execute('SELECT * FROM slippers WHERE name = "mine"')